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Application

The RB223 isolator can be used to galvanically isolate active signal circuits (0 to 20 mA) in three applications:

Transmission from non-Ex to Ex areas e.g for active adjusters, controllers or indicators

Transmission from Ex to non-Ex areas for connection of active, intrinsically safe circuits to the PLC

Transmission from Ex to non-Ex areas for supply of intrinsically safe transmitters with non-intrinsically safe transmitter power supply

Function

The passive isolator transmits signal circuits from the input to the output by galvanic isolation. A HART® signal is also transmitted. The device is optionally available with intrinsically safe input/ output. The device is loop-powered and does not need any additional supply voltage of its own.